The way how waves are generated makes some waves lose their theme which mostly having a mixture of enemies. This specifically pertains to both The Next Generation and Military Parade.
The screenshot above is actually Military Parade (CI5) but looks like The Next Generation (CI4).
The best adjustment on the mentioned waves would be:
- The Next Generation only features enemies that are new to CIU: assasin chicks, poison chickens, coward chickens, etc. This wave is probably the best one to introduce them the same way as chicks are introduced in CI4.
- Military Parade will only have enemies that have at least a little militaristic theme: pilot chickens, poison chickens, etc.
These furthermore increases the difficulty required to encounter them.